Warrants (Tables)
|
12 Months Ended |
Dec. 31, 2019 |
Warrants [Abstract] |
|
Summary Of Warrants Outstanding |
|
|
|
|
|
|
|
|
|
|
|
|
Number of Warrants:
|
|
|
|
|
|
Warrant Issuance
|
|
December 31, 2019
|
|
December 31, 2018
|
|
Exercise Price
|
|
Expiration Date
|
Liability-classified Warrants
|
|
|
|
|
|
|
|
|
|
January 2014 Investors
|
|
-
|
|
39,683
|
|
$
|
153.60
|
|
Jan. 2019
|
November 2015 Investors
|
|
104,168
|
|
104,168
|
|
$
|
63.60
|
|
May 2021
|
November 2015 Placement Agent
|
|
279
|
|
279
|
|
$
|
63.60
|
|
Nov. 2020
|
March 2016 Investors
|
|
50,651
|
|
50,651
|
|
$
|
50.40
|
|
Sept. 2021
|
September 2016 Investors
|
|
67,084
|
|
67,084
|
|
$
|
36.00
|
|
Mar. 2022
|
June 2017 Investors
|
|
126,264
|
|
126,264
|
|
$
|
48.00
|
|
Dec. 2022
|
June 2017 Placement Agent
|
|
15,153
|
|
15,153
|
|
$
|
49.50
|
|
June 2022
|
October 2017 Investors
|
|
136,058
|
|
136,058
|
|
$
|
34.20
|
|
Apr. 2023
|
October 2017 Placement Agent
|
|
16,327
|
|
16,327
|
|
$
|
36.72
|
|
Oct. 2022
|
Total liability classified warrants
|
|
515,984
|
|
555,667
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Equity-classified Warrants
|
|
|
|
|
|
|
|
|
|
October 2018 Investors
|
|
480,771
|
|
480,771
|
|
$
|
20.04
|
|
Apr. 2024
|
October 2018 Placement Agent
|
|
28,848
|
|
28,848
|
|
$
|
19.50
|
|
Oct. 2023
|
January 2019 Investors
|
|
895,886
|
|
-
|
|
$
|
9.60
|
|
Jan. 2024
|
Total equity-classified warrants
|
|
1,405,505
|
|
509,619
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total outstanding warrants
|
|
1,921,489
|
|
1,065,286
|
|
|
|
|
|
|
Summary Of Changes In Warrants Outstanding During The Period |
|
|
|
|
|
|
|
|
|
|
Number of Warrants
|
|
|
|
|
Liability-classified
|
|
Equity- classified
|
|
Total
|
|
Weighted average exercise price
|
Balance, January 1, 2019
|
555,667
|
|
509,619
|
|
1,065,286
|
|
$
|
37.52
|
Issued during the period
|
-
|
|
895,886
|
|
895,886
|
|
$
|
9.60
|
Exercised during the period
|
-
|
|
-
|
|
-
|
|
$
|
-
|
Expired during the period
|
(39,683)
|
|
-
|
|
(39,683)
|
|
$
|
153.60
|
|
|
|
|
|
|
|
|
|
Balance, December 31, 2019
|
515,984
|
|
1,405,505
|
|
1,921,489
|
|
$
|
22.10
|
|
Schedule Of Fair Value Of Warrants Issued |
|
|
|
|
|
|
|
|
Fair Value as of:
|
Warrant Issuance:
|
|
December 31, 2019
|
December 31, 2018
|
November 2015 Investors
|
|
$
|
55
|
$
|
234,918
|
November 2015 Placement Agent
|
|
|
-
|
|
435
|
March 2016 Investor
|
|
|
439
|
|
160,099
|
September 2016 Investors
|
|
|
3,196
|
|
333,834
|
June 2017 Investors
|
|
|
11,736
|
|
623,324
|
June 2017 Placement Agent
|
|
|
845
|
|
65,149
|
October 2017 Investors
|
|
|
23,772
|
|
801,551
|
October 2017 Placement Agent
|
|
|
1,674
|
|
88,276
|
Total:
|
|
$
|
41,717
|
$
|
2,307,586
|
|
Schedule Of Assumptions Used In Calculating Fair Value Of Warrants |
|
|
|
|
|
|
|
|
|
|
December 31, 2019
|
December 31, 2018
|
Trading market prices
|
|
$
|
1.91
|
|
$
|
11.16
|
|
Estimated future volatility
|
|
|
102
|
%
|
|
105
|
%
|
Dividend
|
|
|
-
|
|
|
-
|
|
Estimated future risk-free rate
|
|
|
1.57-1.72
|
%
|
|
2.35-2.53
|
%
|
Equivalent volatility
|
|
|
85-94
|
%
|
|
99-104
|
%
|
Equivalent risk-free rate
|
|
|
1.57-1.59
|
%
|
|
2.51-2.55
|
%
|
Fundamental transaction likelihood
|
|
|
50
|
%
|
|
5
|
%
|
Fundamental transaction timing
|
|
|
April 2020
|
|
|
End of warrant term
|
|
|
Schedule Of Unrealized Gain/(Loss) On Fair Value Of Warrants |
|
|
|
|
|
|
For the Year Ended December 31,
|
|
|
2019
|
|
2018
|
Expired Warrants
|
$
|
-
|
$
|
64,307
|
November 2015 Investors
|
|
234,863
|
|
1,025,132
|
November 2015 Placement Agent
|
|
435
|
|
2,501
|
March 2016 Investors
|
|
159,660
|
|
537,455
|
September 2016 Investors
|
|
330,638
|
|
720,249
|
June 2017 Investors
|
|
611,588
|
|
1,358,540
|
June 2017 Placement Agent
|
|
64,304
|
|
156,442
|
October 2017 Investors
|
|
777,779
|
|
1,504,001
|
October 2017 Placement Agent
|
|
86,602
|
|
177,422
|
Total:
|
$
|
2,265,869
|
$
|
5,546,049
|
|